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含碳矿物的成因或起源常可用碳同位素分析来推断。传统方法主要是简单的统计类比。多年来,人们积累了自然界各地质体碳同位素组成的大量统计资料,对未知成因的碳矿物及含碳矿物,可以其δC~(13)值与上述统计资料对比而推断出碳源。随着对碳同位素分馏机理认识的深化,推断也更趋可靠。近年来,和其他地球化学研究手段相配合,碳同位素还被用来进
The genesis or origin of carbonaceous minerals can often be extrapolated by carbon isotope analysis. The traditional method is mainly simple statistical analogy. Over the years, people have accumulated a large amount of statistical data on the composition of carbon isotopes of the plastids in various places in the world. For carbonaceous and carbonaceous minerals of unknown origin, carbon sources can be inferred by comparing their δC ~ (13) values with the above statistical data. With the deepening understanding of carbon isotope fractionation mechanism, the inference is also more reliable. In recent years, carbon isotopes have been used in conjunction with other geochemical research tools